The exact same thing happened to mine several days ago. I opened mine up, noted that two of the capacitors on the power supply are a bit puffed up, and tested the power supply's 12V and 5V outputs. The 12 Volt output is fine, but the 5 Volt output is only putting out 2 Volts. In short, all of the capacitors on the power supply are made by the same company (Jenpo) and apparently these capacitors were made using the stolen but incomplete formula for manufacturing capacitors much more cheaply. That "capacitor scandal" has cost electronics manufacturers millions. In any event, this would explain why Walmart blew out these Cyberhome CH-DVD 300 players for such a cheap price. Obviously all of the capacitors on the power supply will eventually fail. I have already experienced similar capacitor related problems with a few computer motherboards and other electronics equipment which I bought in the early to mid 2000's. I am contacting Cyberhome to see if they will send me a replacement power supply to go in my CH-DVD 300.
Okay, finally I have a solution for the no power problem. I had to replace two capacitors on the power supply. Both capacitors are located fairly close on the power supply to the 5V and 12V output plug which goes to the DVD player. In my unit, both capacitors appeared to be slightly puffed up on the top of them. The caps are the 2200uF and 1000uF capacitors, both rated at 10V. My theory is that the 100uF cap goes bad first, and that cap in turn takes out the 2200uF cap the next time you plug in your DVD player. Note that the internal fuse on the power supply never blew since the caps merely went bad and of course did not short out. Yet with the bad caps, the 5V output will only read around 2V.
I ordered these specific replacement capacitors from Digi-Key electronics:
2200uF 10V, part # 493-1271-ND
1000uF 10V, part # 493-1496-ND
A half hour ago I finished installing these replacement caps. I then reinstalled the power supply board but didn't plug in the cable leading to the DVD player so that I could check the voltage outputs with my multimeter. I now have 12V and 5V on the appropriate plug pins. Yea! It appeared to be fixed. So I unplugged the power cord, reattached the cable for the DVD electronics, put the cover back on, plugged it in again, and of course my Cyberhome CH-DVD 300 DVD player is working again.
I ordered a pair of each capacitor since my dad has the same model DVD player. I figure that its just a matter of time before I have to repair his as well. Anyway, the total cost for the caps plus shipping via first class mail was only around $6. Now that was a dirt cheap repair job!
I forgot to mention...
While you have the case opened up so that you can remove the power supply board and replace the bad capacitors, you might as well remove the metal top plate over the CD tray so that you can clean the laser lenses with cotton ear swabs moistened with isopropyl alcohol. That way you won't get disc read errors due to the lenses being slightly dirty.
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Hi folks,
If you have any ability with a soldering iron, you could replace the caps yourself and get the player up and running a lot faster than Cyberhome will ever help you.
I did it just today on my dead one using caps I bought from Allied Electronics. The obvious culprit was the 2200uF 10V cap, but I replaced them all anyway. Total cost was about $3. The caps were part of an order I placed for parts on another project I am working on. I figured, what the heck, for a couple more bucks I'll get these caps and try replacing them myself before I throw the thing away. It worked!
As for getting a replacement PS from Cyberhome, what if it has the same garbage jenpo caps on it?
The red "off" power off indicater on my Cyber Home 300 was lighted & I turned the power with the remote, however, the red indicator went off but the green "power on" indicator did not come on. All attempts to get either the red or green indicator failed. I opened the box and found that the DC to DC converter that supplies power to the DVD drive unit was 12V & 2.5V. I figured that the voltages should be 12V & 5 VDC. Bridged another 2200uf capacitor across the existing 2200uf capacitor for the "5 VDC" supply and the voltage increased to 4.0VDC. I assume that the original 2200uf 5V supply capacitor has leakage so I plan to remove the "bad" capacitor which I expect will fix the problem. I wonder if Cyber Home will provide a replacement board??
First you don't unplug it from the wall just hit the button and shut it off you probably blew a fuse
) to turn on the product.
) to turn it on.759 views
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